dt-bindings: amlogic: add the Khadas VIM

Signed-off-by: NMartin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NKevin Hilman <khilman@baylibre.com>

Documentation/devicetree/bindings/arm/amlogic.txt

@@ -43,6 +43,8 @@ Board compatible values:
   - "wetek,hub" (Meson gxbb)
   - "wetek,play2" (Meson gxbb)
   - "amlogic,p212" (Meson gxl s905x)
+  - "khadas,vim" (Meson gxl s905x)
+
   - "amlogic,p230" (Meson gxl s905d)
   - "amlogic,p231" (Meson gxl s905d)
   - "hwacom,amazetv" (Meson gxl s905x)